QUALITATIVE AND QUANTITATIVE THYROID IMAGING IN FELINE HYPERTHYROIDISM USING TECHNETIUM-99M AS PERTECHNETATE   总被引：1，自引：0，他引：1  

Carmel T.  Mooney  MVB  MPhil  Keith L.  Thoday  BVetMed  Phd  DVD  Jeremy J.  Nicoll  BSc  Phd  David L.  Doxey  BVM&S  PhdD 《Veterinary radiology & ultrasound》1992,33(5):313-320

Thyroid imaging using technetium-99m as pertechnetate (^99mTcO₄) was carried out in five healthy, euthyroid and 37 hyperthyroid cats using both pinhole and parallel-hole collimators. Images of greater resolution, necessary to distinguish bilateral lobe involvement, were obtained using the pinhole collimator. Per cent thyriod ^99mTcO₄ - uptake was calculated in each cat and was significanly (P < 0.001) higher in hyperthyroid compared with euthyroid cats. In the hyperthyroid cats, per cent thyroid uptake was significantly correlated with serum total thyroxine (T4) and triiodothyronine (T3) Concentrations. Per cent thyroid ^99mTcO₄ - uptake is increased in feline hyperthyrodism and may be calculated using a pinhole collimator alone at the time of qalitative assessment of the extent of thyroid tissue involvement.  相似文献   

Prevalence and Chemotherapy of Parascaris equorum in Equines in Pakistan     

A. Khan  M.S. KhanM. Avais  DVM  MSc  A.K. MahmoodM. Ijaz  DVM  MPhil 《Journal of Equine Veterinary Science》2010

The prevalence of Parascaris equorum in paddock horses, donkeys, and mules (n = 150 for each) of the Mona Remount Depot, Sargodha, Pakistan, was examined and the efficacy of two treatments, doramectin and garlic, measured on the basis of fecal egg counts. Parascaris equorum infection was found in 54 (36%) horses, 47 (31%) donkeys, and 42 (28%) mules. The final efficacy of treatment with doramectin was 92.5% in horses, 80.6% in donkeys, and 81.4% in mules, compared to 44.4%, 51,6%, and 37%, respectively, with garlic, making doramectin the more effective treatment.  相似文献   

Anemia of Chronic Renal Failure in Dogs     

Lesley G. King MVB    Urs Giger DVM    Deborah Diserens MPhil  Larry A. Nagode DVM  PhD 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1992,6(5):264-270

Seventeen dogs with chronic renal failure (CRF) were studied to evaluate the incidence, type, and etiology of anemia in CRF. A nonregenerative, normochromic, normocytic anemia was seen in 12 of 17 dogs (70.6%). There was a direct correlation between the degree of anemia and the extent of CRF as assessed by serum creatinine concentrations (P = .0386, r = .50923). Erythrocyte concentrations of 2,3-diphosphoglycerate (DPG) were significantly increased in anemic animals and showed a close correlation to the degree of anemia. The high DPG concentrations may compensate for the anemia by decreasing the hemoglobin-oxygen affinity and thereby facilitating tissue oxygenation at low hematocrits. Serum concentrations of erythropoietin (Epo) were in the low to normal range, despite mild to moderate anemia, documenting a deficiency of Epo in dogs with CRF. The nonregenerative nature of the anemia supports impaired hematopoiesis as a significant etiologic factor. Other factors, such as increases in serum parathyroid hormone and phosphorus, were not found to correlate significantly with the degree of anemia, although there were significant differences between their concentrations in anemic compared with non-anemic dogs. There was no change in erythrocyte osmotic fragility with uremia. The documentation of a nonregenerative, normochromic, normocytic anemia, with failure of an appropriate increase in Epo production, supports the therapeutic use of Epo in the management of the anemia seen in CRF in the dog.  相似文献   

In Vitro Performance Testing of Two Arcuate Oscillating Saw Blades Designed for Use During Tibial Plateau Leveling Osteotomy     

Andrew Mathieson MEng AMIMechE  Peter Chung MPhil  Mary Kate McDonald BSc BVMS  Andrea Cardoni BEng  Ing  PhD 《Veterinary surgery : VS》2011,40(6):694-707

Objective: To test the cutting performance of 2 commercially available oscillating saws designed for use during tibial plateau leveling osteotomy (TPLO) and to evaluate the influence of saline irrigation on cutting performance. Study Design: In vitro experimental study. Sample Population: Composite polyurethane test blocks (n=40); 24 mm TPLO saw blades. Methods: Controlled force cutting tests were performed using custom‐made laminated bone substitute blocks to model the canine proximal tibia. Half of the trials were irrigated with 0.9% saline solution. Outcome measures were test block temperature (measured 1.5 mm from the cutting zone), cutting rate, and cutting surface wear. Durability was measured by recording change in performance over multiple consecutive trials. Results: The Synthes blade cut the test blocks with ～64% less heat generation and at a 63% faster cutting rate compared with the Slocum blade. Although wear of the Synthes blade was ～50% greater after 19 uses, this did not negatively impact cutting performance. Saline irrigation produced no significant effect on peak cutting temperature but significantly reduced cutting rate for both saws. Conclusions: Our results favor the Synthes blade in terms of cutting performance and the Slocum blade in terms of wear resistance.  相似文献